Get Myxozoan Evolution, Ecology and Development PDF

By Beth Okamura, Alexander Gruhl, Jerri L. Bartholomew

ISBN-10: 3319147528

ISBN-13: 9783319147529

ISBN-10: 3319147536

ISBN-13: 9783319147536

This ebook presents an up to date assessment of the biology of myxozoans, which characterize a divergent clade of endoparasitic cnidarians. Myxozoans are of basic curiosity in figuring out how early diverging metazoans have followed parasitic existence, and also are of substantial financial and ecological difficulty as endoparasites of fish. Synthesizing contemporary examine, the chapters discover matters reminiscent of myxozoan origins; evolutionary traits and diversification; improvement and lifestyles cycles; interactions with hosts; immunology; disorder ecology; the affects of weather switch on sickness; threat evaluate; rising illnesses; and affliction mitigation. This accomplished paintings will entice a large readership, from invertebrate zoologists, evolutionary biologists and developmental biologists to ecologists and parasitologists. it's going to even be of significant functional curiosity to fisheries and conservation biologists. The identity of key components for destiny examine will attract scientists in any respect degrees.

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Extra resources for Myxozoan Evolution, Ecology and Development

Sample text

Nematogalactins represent a further family of cnidarian-specific genes (Hwang et al. 2010). TRGs offer a promising alternative to support relationships where conflicting evidence or low support obscures resolution of problematic taxa. The power of TRGs is limited by the comprehensiveness of the reference data used for identification, but as the number of sequences deposited in public databases increases, precision is likely to increase as well. 4 Mitochondrial Genes and Genomes Mitochondrial gene sequences and especially the arrangement of genes in the mitochondrial DNA molecule are important data that are largely independent of nuclear DNA evolution.

Furthermore, the conflicting hypotheses of Myxozoa as sister-group to the Bilateria and as ingroup of the Cnidaria receive support from different sets of phylogenetic data and analytical approaches. Other related phylogenetic questions include the exact position of the Myxozoa within the Cnidaria and relationships of myxozoans to the endoparasite Polypodium. In the following sections we review the hypotheses and problems for interpreting the phylogenetic relationships of the Myxozoa that result from various data sets and show how the collective evidence now strongly supports their cnidarian nature (Fig.

Zootaxa 3148:7–12 Part I Origins, Evolutionary Trends and Diversification 2 Myxozoan Affinities and Route to Endoparasitism Beth Okamura and Alexander Gruhl Abstract There is now strong evidence that myxozoans have evolved from free-living cnidarians but until recently their higher level relationships have been the subject of considerable controversy. This chapter reviews the morphological and molecular evidence that has contributed to problems in placement and how further collective support has finally resolved their cnidarian affinity.

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Myxozoan Evolution, Ecology and Development by Beth Okamura, Alexander Gruhl, Jerri L. Bartholomew


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